#505DB8#505DB8

#505DB8 is a mid, vivid blue. Relative luminance 0.130; OKLCH L 51.5% C 0.143 H 274.2°. Best body text is #FFFFFF at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#505DB8
RGB	rgb(80, 93, 184)
HSL	hsl(233, 42%, 52%)
HSV	hsv(233, 57%, 72%)
CMYK	cmyk(56.5%, 49.5%, 0%, 27.8%)
CIE-LAB	lab(42.75, 22.09, -49.86)
CIE-LCH	lch(42.75, 54.53, 293.89°)
OKLab	oklab(51.49% 0.0104 -0.1424)
OKLCH	oklch(51.49% 0.143 274.2)
XYZ	xyz(15.8715, 12.9937, 47.0098)
Luminance	0.1300 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#505DB8 #B8AB50

analogous

#5091B8 #505DB8 #7750B8

triadic

#505DB8 #B8505D #5DB850

tetradic

#505DB8 #B85091 #B8AB50 #50B877

square

#505DB8 #B85091 #B8AB50 #50B877

split-complementary

#505DB8 #B87750 #91B850

monochromatic

#293065 #3B4590 #505DB8 #7C85CA #A7AEDB

Accessibility & contrast

On white

5.83

#505DB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#505DB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #505DB8

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##505DB8	#FFFFFF	#000000	##FFFFFF
##505DB8	1.00	5.83	3.60	5.83
#FFFFFF	5.83	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#306ABB

Deuteranopia (green-blind)

#2061B6

Tritanopia (blue-blind)

#137182

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #505db8;
/* rgb */ color: rgb(80, 93, 184);
/* oklch */ color: oklch(51.5% 0.143 274.2);

Tailwind

colors: {
  custom: {
    50: '#898ace',
    500: '#505db8',
    950: '#000000',
  },
}

SCSS

$custom: #505db8;
$custom-light: #898ace;
$custom-dark: #000000;

JSON

{
  "hex": "#505db8",
  "rgb": {
    "r": 80,
    "g": 93,
    "b": 184
  },
  "hsl": {
    "h": 232.5,
    "s": 42.276,
    "l": 51.765
  },
  "oklch": {
    "l": 0.51492,
    "c": 0.14276,
    "h": 274.2
  },
  "luminance": 0.12995
}

Semantic roles & 50–950 ramp

primary

#505DB8

secondary

#C9C39B

accent

#C356D2

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0C0B14

muted

#7D7C82

Preview Lab

Preview with #505DB8

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →